chore: Prepare release 0.16.4

Author: pawamoy

CHANGELOG.md

@@ -5,6 +5,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
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+## [0.16.4](https://github.com/mkdocstrings/pytkdocs/releases/tag/0.16.4) - 2025-03-09
+
+<small>[Compare with 0.16.3](https://github.com/mkdocstrings/pytkdocs/compare/0.16.3...0.16.4)</small>
+
+### Bug Fixes
+
+- Stop using deprecated `ast.Str` ([7b3bace](https://github.com/mkdocstrings/pytkdocs/commit/7b3bacec73b76822066f9f60fbff8a76aea96b03) by Timothée Mazzucotelli).
+
 ## [0.16.3](https://github.com/mkdocstrings/pytkdocs/releases/tag/0.16.3) - 2025-03-09
 
 <small>[Compare with 0.16.2](https://github.com/mkdocstrings/pytkdocs/compare/0.16.2...0.16.3)</small>